The Justice Department claims the four states' climate actions conflict with federal authority and President Donald Trump’s ...

Weakening or rolling back longstanding environmental regulations would worsen the problem, the American Lung Association ...

The U.S. Justice Department filed lawsuits against four states this week, claiming their climate actions conflict with federal authority and President Donald Trump's en ...

The United States government filed a lawsuit Wednesday against the state of Michigan, Governor Gretchen Whitmer, and Attorney ...

The Trump administration has initiated a series of threats to programs designed to protect human health and the environment. Here are just a few of the proposals: • Firing thousands of federal agency ...

When it comes to regulating motor vehicle emissions, California has long been different. California was the first state in the nation to ...

The U.S. House Wednesday evening passed two resolutions that aim to roll back strict California emissions standards.

In court filings, the DOJ said the Clean Air Act — a federal law authorizing ... program for regulating air pollution in the United States and "displaces" the ability of States to regulate ...

The House on Wednesday voted to axe California’s clean truck rules — defying Congress’s own internal watchdog in doing so.